US2470198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image forming projection with schmidt-type optical system
Assignee: Lanteris Space LLC
•
Filing: 1946-09-27
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Granted: 1949-05-17
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Expires: 1966-09-27
Abstract
No abstract record available.
Inventors
- 👤 Ernest H Traub
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:47
CPC Classifications
G; G02; G02B; G02B17/00; G02B17/08; G02B17/0884; G02B17/0888
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1372645A
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US1154232A
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US2090398A
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US2170979A
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US2273801A
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US2295779A
Cited
US2309788A
Cited
US2307210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-16 | 1952-11-15 | 1953-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-16 | 1956-11-15 | 1957-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-16 | 1960-11-15 | 1961-05-17 | $7700.00 | Window Closed / Lapsed |